Answer:
Contain only single bonds in their fatty acid tails
Explanation:
Fatty acids can be said to be saturated or unsaturated depending on the number of bonds in a fatty acid chain.
A fatty acid chain with singular bonds between neighboring carbons in the hydrocarbon chain is Saturated. Saturated fatty acids are well known to be saturated with hydrogen. It has its carbon skeleton completely filled and occupied with hydrogen atom e.g. Stearic acid.
